6421037 has 4 divisors (see below), whose sum is σ = 7338336. Its totient is φ = 5503740.

The previous prime is 6421021. The next prime is 6421039. The reversal of 6421037 is 7301246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6421037 - 2⁴ = 6421021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458639 + ... + 458652.

It is an arithmetic number, because the mean of its divisors is an integer number (1834584).

Almost surely, 2^6421037 is an apocalyptic number.

It is an amenable number.

6421037 is a deficient number, since it is larger than the sum of its proper divisors (917299).

6421037 is an equidigital number, since it uses as much as digits as its factorization.

6421037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917298.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6421037 is about 2533.9765192282. The cubic root of 6421037 is about 185.8667581606.

The spelling of 6421037 in words is "six million, four hundred twenty-one thousand, thirty-seven".